Answer:
1
Step-by-step explanation:
When a variable does not have a visible coeffecient then the coefficient is 1. (Double check to make sure I'm correct)
Answer:
2.83 s
Step-by-step explanation:
We are given that

When a rock reached the ground then h(t)=0


Using quadratic formula





Time cannot be negative .Therefore, negative value of t can not be possible.
Hence, the rock takes 2.83 sec to reach the ground.
Answer:
You're right its B or 35
Step-by-step explanation:
Just divide 140 by 4 u get 35
Answer:
<em>X=2</em>
Step-by-step explanation:
3x-15=7-8x
3x+8x=7+15
11x=22
x=
x=2
<u><em>0.00266666667</em></u> m / min.